期刊
JOURNAL OF SOUND AND VIBRATION
卷 333, 期 20, 页码 5130-5140出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2014.05.041
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资金
- National Natural Science Foundation of China [51335006, 11102095]
- Tsinghua University Initiative Scientific Research Program [2011Z08137]
- State Key Laboratory of Tribology Initiative Research Program [SKLT11A02]
Time-varying mesh stiffness parametrically excites gear systems and causes severe vibrations and instabilities. Taking speed fluctuations into account, the time-varying mesh stiffness is frequency modulated, and more complex instabilities might arise. Considering two different speed fluctuation models, parametric instability associated with velocity-modulated time-varying stiffness is analytically investigated using a typical single-mesh gear system model. Closed-form approximations are obtained by perturbation analysis, and verified by numerical analysis. The effects of the amplitude of the mesh stiffness variation, the characteristics of speed fluctuations and damping on parametric instability are systematically examined. (C) 2014 Elsevier Ltd. All rights reserved.
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